The best advice I can offer comes from someone else: http://www.huffingtonpost.com/elizabeth-dankoski/why-a-perfect-sat-score-c_1_b_9219184.html
Unfortunately, none of the qualities an Admissions Committee looks for come across in a chance-me post. The best anyone can say is that your test scores and GPA place you within HYPSM’s range and the range of every other college. Does that mean you have a chance? Sure it does! Does that mean you will accepted to HYPS or M? Impossible to say – as the key is how well you are able to communicate “what lights you up” and how you’ve taken those things and “made a difference in the larger community.”
Best of luck to you in the upcoming Admissions process!